Brush



May 26, 1942. KARAS 2,284,213

BRUSH Filed July 14, 1941 Patented May 26, 1942 I UNI-TED STATE PATE Nr-oFricE-f 7 i 'BRUSH- S teve'Karas, Gary, Ind. np tients '14, 1941, Serial No. 402,403

I 2 o1a.ims. (or. 15+29) This invention relates to a brush, more particularly to a hose nozzle brush,v and has for an object-to provide a brush of this type which will apply water to the surface to be cleaned while at the same time will scrub the surface, and will prevent splashing of water over the operator or over parts of the vehicle or other surface which it is not intended to wet.

A further object is to provide a device of this character having a rotary brush propelled by the water stream which latter is applied to the brush in an annular fountain surrounding the entire cylindrical surface of the brush.

A further object is to provide apparatus of this character which will be formed of a few strong, simple and durable parts, which will be inexpensive to manufacture, and which will not easily get out of order.

With the above and other objects in view the invention consists of certain novel details of construction and combinations of parts hereinafter fully described and claimed, it being understood that various modifications may be resorted to within the scope of the appended claims without departing from the spirit or sacrificing any of the advantages of the invention.

In the accompanying drawing forming a part of this specification:

Figure 1 is a rear elevation of a brush constructed in accordance with the invention.

Figure 2 is a front elevation of the brush shown in Figure 1.

Figure 3 is a side elevation of the brush showing the guide for directing sliding movement of the brush into and out of the housing. V

Figure 4 is a cross sectional view taken on the line 44 of Figure 3 showing the motor.

Figure 5 is a longitudinal sectional view of the brush.

Figure 6 is a cross sectional view taken on the line 6-6 of Figure 3.

Referring now to the drawing in which like characters of reference designate similar parts in the various views, the brush comprises a cylindrical housing I0 having oppositely disposed 1ongitudinal guide slots II. The housing is provided with a cylindrical guard I2, preferably formed of rubber and secured to the housing by rivets l3 or other connectors. The guard extends forward from the housing and is adapted to be pressed against the surface to be cleaned and confine the water to that area of the surface defined by the guard so that the water cannot be splashed during the washing operation.

The brush motor comprises a cylindrical stator [4 which is of lessdiameter than the housing ll and is slidably fitted to move forward and backwardin the housing through the medium of screws I5 which are slidably engaged in the guide slots H and are threadedly engaged in lugs l6 which project'from the front end of the stator and space the stator from the hous ing. A rotor I1 is rotatably mounted in the housing and is formed of blades of arcuate contour fixed to a shaft l8, see Figure 4.

The rotor shaft [8 is journaled at the rear end ina central opening in the rear wall of the stator and at the front end is journaled in an opening formed in a bridge bar [9 which is U-shape in contour and is welded or otherwise secured to the inner surface of the stator at the front end thereof, see Figure 5. The front end of this shaft is threadedly engaged in a hub 20 which is secured to the back 2| of a cylindrical brush 22 by screws 23 or other connectors. A nozzle 24 is formed integral with the stator l4 and is interiorly threaded to receive a hose coupling. The nozzle is provided with an axial reduced bore 25 adapted to direct the water stream against the blades of the rotor I 1 for rotating the brush 22 by water power.

The rotor is provided with a circular front wall 26, see Figure 6 having a hub 21 which is fixed to the shaft [8 in any preferred manner. The wall isof less diameter than the diameter of the stator so that water after turning the rotor escapes over the wall along the inner surface of the stator I l. The purpose of this is to control the direction of application of the water supply to the brush and to this end, the annular stream of water escaping forward from the rotor meets an annular dished bafiie 28 which projects radially toward the brush 22 from the front end of the stator.

The inner periphery of the baflie is of greater diameter than the diameter of the brush at that portion of the brush which passes through the baffle so that the water stream is directed radially by the baflie in an annular stream which surrounds the entire cylindrical surface of the brush. The baflle is provided with openings 29 to permit some of the water to escape in a recabutting endwise contact with the surface to be cleaned. This movement causes the brush 22 to be forced rearwardly so that its front end is entirely within the guard, rearward movement of the brush being directed by the guide screws I5 moving rearwardly in the guide slots II. When the water power is turned on the rotor rapidly rotates the brush while at the same time the water stream escapes forwardly in an annular body around the brush to apply water to the surface at the same time the brush is'scrubbing the surface.

From the above description it is thought that the construction and operation of the invention will be fully understood without further explanation.

What is claimed is: 1. A hose nozzle brush comprising, a casing;

a fluid impelled rotor in the casing, a stator for r lug for slideably connecting the stator to the casing, a brush in the casing rotated by the rotor, means on the stator for deflecting the exhaust from the rotor in a radial direction against the brush, and a flexible collar forming the end of the casing adapted to engage a surface upon which the brush is operating.

2. A hose nozzle brush comprising, a casing, a fluid impelled rotor in the casing, a stator for the rotor, means slideably connecting the stator to the casing, a brush in the casing rotated by the rotor, a disk on the rotor of less diameter than the stator for directing the exhaust outwardly in the stator, a perforated dished flange projecting radially from the end of the stator of greater diameter at the inner periphery than the stator for deflecting the exhaust from the rotor in a radial direction against the brush, and .a flexible collar forming the end of the casing adaptedto engage a surface upon which the brush isoperating.

STEVE KARAS. 

